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electrical discharge machining

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Published: 01 September 2008
Fig. 14 Electrical discharge machining (EDM) white layer found on a die surface made of AISI D6 (similar to D3) tool steel. Note the white aspect of untempered martensite caused by the EDM process and the presence of small cracks in this layer. Original magnification: 500×. Courtesy More
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Published: 01 February 2005
Fig. 23.3 Flow chart of die manufacturing by electrical discharge machining (EDM). CAM, computer-aided manufacturing [ Yoshimura et al., 1997 ] More
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Published: 01 November 2012
Fig. 51 Effect of electrical discharge machining (EDM) and grinding on the fatigue strength of Inconel 718. Fatigue tests involved cantilever bending at room temperature and zero mean stress. Source: Ref 26 More
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Published: 01 October 2012
Fig. 5.36 Effects of machining conditions on mill-annealed Ti-6Al-4V. EDM, electrical discharge machining. Source: Ref 5.3 More
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Published: 01 February 2005
Fig. 21.9 Information flow and processing steps in die manufacturing. CMM, coordinate measuring machine; CNC, computer numerical control; EDM, electrical discharge machining More
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Published: 01 October 2012
Fig. 12.5 Approximate values of surface roughness and tolerance on dimensions typically obtained with different manufacturing processes. ECM, electrochemical machining; EDM, electrical discharge machining. Source: Ref 12.7 More
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Published: 01 December 2000
Fig. 10.5 Summary of machining effects on high-cycle fatigue behavior of Ti-6Al-4V (annealed, 32–34 HRC). EDM, electrical discharge machining; CHM, chemical milled More
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Published: 01 October 2011
because of internal stresses left by molding and viscous (creep) deformation at service temperatures. ECM, electrochemical machining; EDM, electrical discharge machining. Source: Ref 6.2 More
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Published: 01 September 2008
Fig. 22 (a) Surface of an AISI A4 primer cup plate showing spalling at one of the 3.2 mm diameter holes made by electrical discharge machining (EDM) Original magnification: 2.5×. (b) Microstructures associated with the spalled hole in (a) caused by improper EDM technique. Source: Ref 16 More
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Published: 01 March 2002
Fig. 7.15 Microstructure of an AISI/SAE 4327 steel casting that was sectioned by electric discharge machining (EDM). (a) Low-magnification view of the cut surface. (b) Melted and solidified region at the surface. (c) Heat-affected zone. (d) Base bainitic microstructure. 4% picral plus HCl etch More
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Published: 01 September 2008
Fig. 11 Effect of carbon content on the hardness of different microstructures. Martensite hardness increases rapidly with carbon content. Reaustenitizing and quenching, which can occur in the surface of ground or electrical discharge machined tools, can cause high hardness and brittleness More
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Published: 01 September 2008
marks) Failure was also assisted by closely spaced holes and electrical discharge machining procedures. Generally, grinding cracks are not as easy to see as this. It is usually necessary to examine the part under a microscope or with magnetic powder inspection in order to see the cracks. Source: Ref 8 More
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Published: 01 September 2008
Fig. 15 (a) A2 tool steel blanking die, 63 mm (2½ in.) in diameter by 13 mm (½ in.) thick, that cracked in service because of a brittle zone that had formed during electrical discharge machining (EDM) of the cavity at center. Arrows point to cracks emanating from the cavity. Source: Ref 7 More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740213
EISBN: 978-1-62708-308-9
... processes such as electrical discharge, abrasive jet, and hydrodynamic machining, laser and electron beam machining, ultrasonic impact grinding, and electrical discharge wire cutting. chip formation cutting fluids cutting tools machinability machining tool wear MACHINING COVERS a large...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040319
EISBN: 978-1-62708-300-3
... part of the manufacturing sequence of precision parts. The use of electrical discharge machining (EDM) and wire EDM machines in manufacturing cold forging dies has considerably improved the accuracy of forging dies. Elastic deflection of the press and tools: When the forming load is applied...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110652
EISBN: 978-1-62708-247-1
... at the input protection structures. charged device model electrical over-stress electro-static discharge failure analysis human body model integrated circuits machine model Introduction Distinguishing between EOS and ESD failures and differentiating the subtle differences between damage due...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030023
EISBN: 978-1-62708-282-2
... the current discharges from the unprotected, downstream pipeline. Sources of Stray Currents Almost any electrical systems that use grounds or grounding in their system can create stray direct current (dc) problems. In the past, electric railways were a major source of stray dc. This source became less...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230339
EISBN: 978-1-62708-298-3
..., grinding, sawing, abrasive cutting, thread cutting, chemical machining, electrical discharge machining, electrochemical machining, and trepanning. Feed rates and cutting speeds for lathe turning and milling are comparable to those used for machining cast iron, although they may be dictated...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120079
EISBN: 978-1-62708-269-3
...) for conventional and abusive conditions, respectively. Figure 10.5 also presents values for other machining operations, including electrical discharge machining and chemical milling. As can be seen, in operations such as end-mill cutting or turning, the same sensitivity to abusive conditions was not observed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060117
EISBN: 978-1-62708-261-7
...) NA A A A A A NA A LC A A Hot extrusion NA A LC LC A A NA A LC LC LC Rotary swaging NA A A A A LC LC A NA A A Machining from stock A A A A A A A A LC LC LC Electrochemical machining A A A A LC LC LC LC A A LC Electrical discharge...